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Pregled bibliografske jedinice broj: 537627

On the anomalous large-scale flows in the Universe


Palle, Davor
On the anomalous large-scale flows in the Universe // European physical journal C : particles and fields, 69 (2010), 3/4; 581-589 doi:10.1140/epjc/s10052-010-1396-1 (međunarodna recenzija, članak, znanstveni)


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Naslov
On the anomalous large-scale flows in the Universe

Autori
Palle, Davor

Izvornik
European physical journal C : particles and fields (1434-6044) 69 (2010), 3/4; 581-589

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
large-scale flows; universe

Sažetak
AB Recent combined analyses of the CMB and galaxy cluster data reveal unexpectedly large and anisotropic peculiar velocity fields at large scales. We study cosmic models with included vorticity, acceleration and total angular momentum of the Universe in order to understand the phenomenon. The Zel'dovich model is used to mimic the low redshift evolution of the angular momentum. Solving coupled evolution equations of the second order for density contrast in corrected Ellis-Bruni covariant and gauge-invariant formalism one can properly normalize and evaluate integrated Sachs-Wolfe effect and peculiar velocity field. The theoretical results compared to the observations favor a much larger matter content of the Universe than that of the concordance model. Large-scale flows appear anisotropic with dominant components placed in the plane perpendicular to the axis of vorticity (rotation). The integrated Sachs-Wolfe term has a negative contribution to the CMB fluctuations for the negative cosmological constant and it can explain the observed small power of the CMB TT spectrum at large scales. The rate of the expansion of the Universe may be substantially affected by the angular momentum if its magnitude is large enough.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
098-0000000-3277 - Teški Majorana neutrini u fizici čestica i kozmologiji

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Davor Palle (autor)

Poveznice na cjeloviti tekst rada:

doi link.springer.com arxiv.org

Citiraj ovu publikaciju:

Palle, Davor
On the anomalous large-scale flows in the Universe // European physical journal C : particles and fields, 69 (2010), 3/4; 581-589 doi:10.1140/epjc/s10052-010-1396-1 (međunarodna recenzija, članak, znanstveni)
Palle, D. (2010) On the anomalous large-scale flows in the Universe. European physical journal C : particles and fields, 69 (3/4), 581-589 doi:10.1140/epjc/s10052-010-1396-1.
@article{article, author = {Palle, Davor}, year = {2010}, pages = {581-589}, DOI = {10.1140/epjc/s10052-010-1396-1}, keywords = {large-scale flows, universe}, journal = {European physical journal C : particles and fields}, doi = {10.1140/epjc/s10052-010-1396-1}, volume = {69}, number = {3/4}, issn = {1434-6044}, title = {On the anomalous large-scale flows in the Universe}, keyword = {large-scale flows, universe} }
@article{article, author = {Palle, Davor}, year = {2010}, pages = {581-589}, DOI = {10.1140/epjc/s10052-010-1396-1}, keywords = {large-scale flows, universe}, journal = {European physical journal C : particles and fields}, doi = {10.1140/epjc/s10052-010-1396-1}, volume = {69}, number = {3/4}, issn = {1434-6044}, title = {On the anomalous large-scale flows in the Universe}, keyword = {large-scale flows, universe} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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